Improvement in spinning-machines



GEORGE DRAPER.

Improvement in Spinning-Machines.

Patented June 11, 1872.

UNITED STATES GEORGE DRAPER, OF HOPEDALE, MASSACHUSETTS.

IMPROVEMENT IN SPINNING-MACHINES.

Specification forming part of Letters Patent No. 127,748, dated June 11, 1872.

To all persons to whom these presents may come:

Be it known that I, GEORGE DRAPER, of i-Iopedale, of the county of Worcester, in the State of Massachusetts, have made a new and useful invention having reference to machinery for spinning, and more especially to that of what are termed ringspinning frames; and I do hereby declare the same to be described as follows, and to be represented in the accompanying drawing, of which Figure 1 denotes a vertical section of a ring, ring-rail, spindle, bolster, and bobbin, constructed and arranged on what is termed the Sawyer plan, and provided with my invention or improvements.

My invention, as hereinafter described, embraces a stationary rigid friction quill or tube, separate from the bobbin, and arranged upon and combined with the spindle, and being for the purpose of effecting a better or surer hold of the bobbin to the spindle, to prevent slip of either with respect to the other whilethe two may be in revolution. Another object of the friction quill or tube is to keep the bobbin off or out of contact with the bolster, when the latter is projected within the bobbin. Another object of the friction quill or tube, when extended above the bobbin, as shown in the drawing, is to-enable the bobbin to be started off the spindle without the necessity of any upward pull on the latter. Another object of the friction quill or tube is to insure steadiness of motion of the bobbin, or to prevent it from wabbling or chattering while in rapid revolution. The friction quill or tube is to remain on the spindle and not to be removable therefrom with the bobbin; and it becomes, practically speaking, an enlargement of the spindle in diameter with reference to its size at its bearing in the upper part of the bolster. I, however, prefer to make such en and bobbin, or a narrow space between the two and encompassing the tube. It is important that the friction-tube should be so fitted to the spindle as not to bend it while on it; and it is also important that such tube should so fit the bobbin or be arranged therewith as not to render it eccentric with respect to the spindle.

In Fig. 2 of the drawing the friction-tube is shown as closely fitting at or near its lower end to the bobbin, and as loosely fitted to it at the upper part of the said tube.

In the drawing, A denotes the ring; B, the ring-rail; O, the bobbin; D, the separate fric tion quill or tube; E, the spindle; F, the bolster; Gr, the bolster-rail; H, the whorl; I, the spindle-step; and K the step-rail. The shoulder of the spindle is shown at a as arranged within a chamber or socket, 1), formed in the lower part of the bolster, in manner as shown. I would remark that I sometimes construct the friction-tube so as not to extend entirely through the bobbin to its upper end, leaving the bobbin there to take a bearing on the spindle; but I prefer to extend the friction-tube not only to, but somewhat above the upper end of the bobbin, in order to enable a person, while grasping the bobbin with his hand for the purpose of detaching it from the tube, to place his thumb upon the top of the frictiontube as a support for the hand, and to hold down the tube while lifting the bobbin, thereby saving all necessity of pulling the tube and spindle upward, as well as all danger of detaching the tube from the spindle; also, all danger of snarling the yarn or pulling it 011' the bobbin so as to produce waste.

In Fig. 3 I have shown the tube as extended upward on the spindle, and with the bobbin taking a bearing on the tube, as shown.

Heretofore, in order for a bobbin and its spindle to run steadily it has been deemed necessary to support the bobbin on the spindie by two separate close-fitting bearings or bushingsone at or near the top, and the other in some other part of the bobbin, as, for instance, at or below the middle, or at the lower part of the bobbin. I have discovered that the lower bearing alone should fit closely, the upper or other bearing being a loose fit, or, in other words, having between it and the spindle, and about the latter, a thin or narrow I generally sneakin i l b fastened or cemented firmly therein, so as to be movable with the bob bin from the spindle; but such has no reference to, nor forms any part of, my invention, wherein the friction tube is separate from the bobbin, and remains as a iiX- tnre, or stationary, relatively to the spindle, and is for very different purposes or objects, I make no claim to the bobbin-holding devices claimed in the United States patents 50,240, 50,241, and 50,311,

neither of which is a rigid tube like my bobbin-supporter, but is composed of one or more elastic springs, which, when the bobbin may he at a high speed, are liable to admit of its \vabhling, and besides do not operate to properly centralize the bobbin. Furthermore, my

bobbin-supporter or quill is chambered in its base, so as to tit to the spindle only near the upper and lower ends of the quill, whereby it takes two bearings only on the spindle, and thus has no tendency to bend it out of a straight line so as to cause it to vibrate when in revolution.

- I claim-- 1. In combination with the spindle E, the chambered bobbin 0 and the bolster F, extended up within the bobbin, substantially as described; the spindle enlargement or rigid friction-tube or quill D, separate from the bobbin, and fitted to the spindle so as to revolve therewith and be revolved by it, and remain adhering to itduring and after removal of the bobbin; all being essentially as and for the purpose or objects as hereinbefore stated.

2. I also claim the friction tube or quill 1), made or arranged to project above the bobbin 0, in manner and for the purpose substantially as hereinbefore explained.

3. I also claim the friction tube or quill, provided with the internal chamber to surround the spindle, and with two spindle-bearin gs at the ends of the said chamber, and also at top and bottom with bobbin-bearings, as explained, all being as represented.

4. I also claim the bobbin and the friction tube or quill as provided with a lower tightfitting bearing and an upper loose-fittin g bearing, all substantially as explained.

GEORGE DRAPER.

\Vi tnesses:

R. H. EDDY, J. R. Snow. 

